package operation;

import book.Book;
import book.BookList;

public class ExitOperation implements IOperation{
    public void work(BookList bookList){

        System.out.println("退出系统!");

        int currentSize = bookList.getUsedSize();
        for (int i = 0; i < currentSize; i++) {
             bookList.setBooks(i,null);
        }
        System.exit(0);
    }

}
